Ok when you are estimating you basically make all the numbers have no decimal or turn them all to tens. For this question you have to make 31.9 have no decimal so you turn it into 32. Then you divide 32 and 4. That equals 8. So 8 is your answer :)
Let the two functions be f(x) and g(x).
Create the sum or composite of the functions as
h(x) = f(x) + g(x).
In order to have inverses, both f(x) and g(x) should pass the vertical line test
Therefore the sum (or difference) of the two functions, h(x), will also pass the vertical line test.
Answer:
Because h(x) passes the vertical line test, it follows that the inverse of the composite function made by the original functions is also a function.
<h2>
Hello!</h2>
The answer is:
The correct option is the third option,

<h2>
Why?</h2>
From the statement we know the function that models the population growth over the years (p(x)) but we have been told that there is an estimated loss that can be modeled by the function L(p), so in order to find which function represents the final function, we need to composite the function, which is the same that evaluate p(x) into the function L(p).
We are given:

and

So, the evaluationg p(x) into L(p), we have:

Hence, the correct option is:
The third option,

Have a nice day!
12x + 14 = 26x + 21x = 27x